package com.itheima.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

// JDBC快速入门
public class JDBCDemo {
    public static void main(String[] args) throws Exception {
        //1.注册驱动
        Class.forName("com.mysql.jdbc.Driver");

        //2.获取连接               // localhost
        String url = "jdbc:mysql://127.0.0.1:3308/db1?useSSL=false";// &characterEncoding=UTF-8
                    //jdbc:mysql:///db1?useSSL=false
        String username = "root";
        String password = "123456";
        Connection conn = DriverManager.getConnection(url,username,password);

        //3.定义sql
        String sql = "update account set money = 2000 where id=1";

        //4.获取执行sql的对象 Statement();
        Statement stmt =  conn.createStatement();

        //5.执行sql
        int count = stmt.executeUpdate(sql);//受影响的行数

        //6.处理结束
        System.out.println(count);

        //7.释放资源
        stmt.close();
        conn.close();

    }

}
